NOVEL SURFACTANT-FREE SELF-REVERSIBLE REVERSE LATEX, AND USE OF SAME AS A THICKENING AGENT IN A COSMETIC COMPOSITION

摘要

Disclosed is a self-reversible reverse latex including: a) 25-80% by mass of a cross-linked anionic polyelectrolyte (P), resulting from the polymerisation, for 100 mole percent: i)—of a molar proportion 30% and 95% of monomeric units from at least one monomer including a free, partially- or totally-salified strong acid function; and ii)—of a molar proportion >0% and <5% of at least one monomer with diethylenic or polyethylenic crosslinking; b) 0.5-10% by mass of a terpolymer of stearyl methacrylate, pentacosaethoxylated behenyl methacrylate and N,N-dimethylacrylamide, resulting from the polymerisation, for 100 mole percent: of 80-95 mole percent of stearyl methacrylate, of 2.5-10 mole percent of N,N-dimethylacrylamide, and of 2.5-10 mole percent of pentacosaethoxylated behenyl methacrylate, c) 5-40% by mass of at least one oil, and d) 0.1-40% by mass of water; method of preparing same and use thereof as a thickener.

主权项

1. A composition in the form of a self-reversible reverse latex comprising, per 100% of its mass:
a)—From 25 mass % to 80 mass % of a crosslinked anionic polyelectrolyte (P), derived from the polymerization, per 100 mol %: i)—of a molar proportion of greater than or equal to 30% and less than or equal to 95% of monomer units derived from at least one monomer comprising a free or partially or totally salified strong acid function; ii)—optionally of a molar proportion of greater than or equal to 10% and less than or equal to 65% of monomer units derived from at least one neutral monomer; iii)—optionally of a molar proportion of greater than or equal to 5% and less than or equal to 65% of monomer units derived from at least one monomer comprising a free or partially or totally salified weak acid function; and iv)—of a molar proportion of greater than 0% and less than or equal to 5% of at least one diethylenic or polyethylenic crosslinking monomer; b)—From 0.5 mass % to 10 mass % of a terpolymer of stearyl methacrylate, of pentacosaethoxylated behenyl methacrylate and of N,N-dimethylacrylamide, derived from the polymerization, per 100 mol %, of: 80 mol % to 95 mol % of stearyl methacrylate, 2.5 mol % to 10 mol % of N,N-dimethylacrylamide and 2.5 mol % to 10 mol % of pentacosaethoxylated behenyl methacrylate, c)—From 5 mass % to 40 mass % of at least one oil, and d)—From 0.1 mass % to 40 mass % of water.